You need to recheck your numbers. [1] says the number is about 7% for the US. [2] is > 10% for Bitcoin before I stopped adding.
> illicit transactions making up less than 0.5% of Bitcoin’s yearly volume in 2020
No adding required.
[1] throws a lot of numbers including/excluding different categories of drugs/etc. You can squabble about 7% or 12%, but the point is it's an order of magnitude higher than 0.5%.